For a project I’m currently working on I wanted to make some “bubble” tooltips. In order to cut down on the size/number of images, I’m using css sprites. A quick google reveals that nobody else has (at least on the first page) put together tooltips using sprites. The technique will work with any sort of …

I found out something interesting today. Per the W3C, the total “width” that a block element uses is: If ‘left’ or ‘right’ are given as ‘auto’, their computed value is 0. The following constraints must hold between the other properties: ‘margin-left’ + ‘border-left-width’ + ‘padding-left’ + ‘width’ + ‘padding-right’ + ‘border-right-width’ + ‘margin-right’ = width …